Device for purifying products of combustion and oxidation.



P'ATENTED FEB. 18, 1908.

A. A. CUNNINGHAM. DEVICE FOR PURIFYING PRODUCTS OF COMBUSTION AND OXIDATION.

APPLICATION FILED DEG.15,1906.

WITNESSES.

lM/E/WORE.

' i iumq A TTOEWEY5 mm W M w UNITED STATES PATENT .oFFIoEf ALEXANDER AU UHIE C UN NINGHAM, OF $AN FRANCISCO, CALIFORNIA, ASSIGNOII OF FORTY- FIVE N1) HUNDREDTHS TO ERIC MAXWELL FRANCIS, 01 SAN Fltn NCISCO, CALI- FORNIA.

DEVICE FOR PURIFYING PRODUCTS OF COMBUSTION AND OXIDATION.

Specification of Letters latent.

Patented Feb. 18, 1908.

A Application filed December 15, 1906- Serial No. 348,080;

To all whom it may concern: I

Be it known that l, ALEXANDER Acorns CUNNINGHAM, a citizen of the Uni-tedStatcs, residing. at San Francisco, in the county of San Francisco and Stateof California, have invented certain new and useful improvements in Devices for Purifying Products of Combustion; and I do hereby declare the following to be a full, clear, andeXact'dcscription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present-invention relates to an improved device for the purification of the prod' nets of combustion and oxidation arising from furnaces, and while it may be employed in other connections, it will. be found particularly useful when employed with the fur-c naces used for the smelting of ores, or for the incineration of garbage, manufacture of varnish and the like.

The primary object of the invention is to provide a simple and eflicient means for removing from the waste gases and vapors of combustion and oxidation the solid particles, such carbon, ashes and metallic salts, and the objectionable such as the. exids'ol' carbon, the sulfur compounds, and other va. pors injurious to organic life.

WVith these and other objects in View, the invention comprises certain other novel constructions, combinations and arran ements of parts, as will be hereinafter described and claimed. I

In the drawings :Figure 1 is a longitudinal sectional .view through a purification chamber constructed in accordance with the- 'prcsent invention. ig. 2 is a transverse, sectional view on the line y-ynf Fi 1,, look ing in the direction of the arrow. ig. 3 is a detail, perspective View of one of the dis' tributing troughs.

' Like characters of reference designate corresponding parts throughout the several views.

In the embodiment of the invention shown in the drawings the numeral 1 designates the inclosing Walls oi the purification chamber 2, which is preferably in the nature of a hori- Zontal flue, and which is lined with refractory material adapted to resist the disinterating action of the heat 'and chemicals. .he entrance 3 to the purification chamber 2 is shown located at one end of the said I l l i l l l l "the liquid after passing the products of combustion and oxidation escape to the atmosphere is located at the opposite end of the chamber. In the upper portion of the chamber 2 are disposed a series of distributing troughs 9, which are provided at suitable intervals throughout their length with discharge openings 10 and are so arranged as to have an inclined position. In the preferred form of the invention shown in the drawings'the upper ends oft-he distributing troughs 10 are adjacent the entrance 3, while the lower ends of the troughs are in contact with a portion of the chimney 4 which extends a short distance within the purification chamber 2.

Water or other suitable liquid is supplied to the distributing troughs 9 through the medium of a supply pipe 5, the said pipe having a horizontal portion 12 which can tends transversely across the upper ends of the distributing troughs 9. Projecting laterally from the portion 12 of the supply pipe and in coinn'lunicz'ition therewith are a series of nozzles 13 which deliver the liquid into the troughs 9 from whence it is discharged through the o 'icnings 10 so as to fall through the purification chamber 2 in a number of streams which mayhavc either a staggered or a parallel relation to each other, and which preferably have a suiiicientbody to prevent any objectionable deflection by the draft current.

The bottom of the purification chamber 2 is sloped in oppositewlirection to form a transversely disposed trough at an intermediate point thereof, the said trough being.

adapted to discharge into the wastepipe 8 by means of which the liquid is carried away from the purification chamber 2. In the operation of the device it will be readily apparent that as theproducts of combustion and oxidation entering'through the inlet 3 pass through the chamber'Z, the are brought into repeated contact with the streams of water or other 1i uids-,'which. thoroughly washes out all of t ticles, and carries away e solid parthexobnoxious substances insolution. In the practical constructionof the device the discharge pipe 8 may be formed of any suitable material adaptedto resist the action of the chemicals withwhich it is brought into contact,,and through the purificadischarge openings, a supply pipe extending transversely across the distributing troughs, and provided with means for supplying the various troughs with a liquid, and means for discharging the liquid from the bottom of the chamber.

2. In a device of the character described, I

the combination of walls inclosing a chambar, the bottom of which slopes in opposite directions to form an inclined channel leading to one side of the chamber, a discharge pipe communicating with the lower end of the channel, means for causing the products of combustion to pass through the chamber, a distributing trough located in the upper portion of the chamber and provided with a series of discharge openin s, and means for delivering a liquid to t1e distributing trough.

In testimony whereof I affix my signature in presence of two witnesses.

ALEXANDER AUCHIE CUNNINGHAM. Witnesses: A. K. DAGGETT, G. D. ROBERTSON. 

